The reports highlight the potential for problems caused by relationships between staffers in the most powerful political office in the US. However, the pair is far from the first of its kind in the Trump political machine.

Here's a roundup of the rumored relationships in Trump's campaign and White House.

Hope Hicks and Rob Porter

The Daily Mail reported last week that Hicks and Porter were "spotted canoodling" in a cab after dinner with friends. Several people familiar with the relationship also told CNN the pair was dating.

This week, the Daily Mail and The Intercept detailed allegations from Porter's two ex-wives that he was abusive during their relationships. The reports included photos of black eyes that Colbie Holderness, who was married to Porter for five years, said Porter gave her.

"Rob Porter is a man of true integrity and honor, and I can't say enough good things about him," Kelly's statement said. "He is a friend, a confidante, and a trusted professional. I am proud to serve alongside him."

Hicks and Corey Lewandowski, a former Trump campaign manager

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Hicks has previously been linked romantically to Lewandowski, a former Trump campaign manager.

Early in the presidential campaign, Hicks, then a spokeswoman for Trump, developed a reputation for having a more under-the-radar style than her frequently bombastic coworkers. One of the few public cracks in Hicks' facade was a public screaming match with Lewandowski in May 2016, the New York Post reported.

The rumors resurfaced last month with the publication of Michael Wolff's explosive but highly contested tell-all, "Fire and Fury: Inside the Trump White House," which said Lewandowski and Hicks had an on-again-off-again relationship during the campaign.

"Trump, who otherwise seemed to treat Hicks in a protective and even paternal way, looked up and said, 'Why? You've already done enough for him. You're the best piece of tail he'll ever have,'" Wolff wrote.

In Lewandowski's book, "Let Trump Be Trump," he described Hicks as "smart and private, with a nearly photographic memory."

A.J. Delgado and Jason Miller, campaign advisers

Delgado and Miller, two high-profile Trump campaign staffers who were known for supporting the candidate in TV appearances, had a secret relationship during the campaign.

Delgado told The Atlantic that the relationship deteriorated soon after the election when she told Miller she was pregnant. Miller was married at the time, though Delgado said she believed he was separated.

Delgado recalled Miller saying the news was "going to be extra awkward for me to handle" because his wife was also expecting a baby.

Miller was appointed White House communications director in December but turned down the role two days later, after Delgado sarcastically tweeted her congratulations to "the baby-daddy."

On Tuesday, Vanity Fair reported that Miller told people he didn't want to take a job in the White House because he "needs to earn a private-sector income to make child support payments" to Delgado, who later slammed him on Twitter.

"I'd also really love to know who is receiving 'child support payments that req private-sector-level income' bc it sure as heck isn't my son," she said.

"Miller's Comms Dir role last Dec was not revoked because of a mere 'extramarital affair,'" she continued. "He (a) impregnated (b) a subordinate (c) got her pregnant (d) while his own wife was six months pregnant."

Donald Trump and a mystery woman

Chris Kleponis-Pool/Getty Images

Trump's reported dalliances have been tabloid fodder for years. Now the rumors are following him to the White House.

"You just have to read between the lines," Wolff said. "It's toward the end of the book."

Some people theorized that Wolff was referring to Nikki Haley, the US's ambassador to the United Nations. Haley shot down rumors in an interview with Politico, calling them "highly offensive" and "disgusting."

Others said they thought Wolff was referring to Hicks, pointing to a passage describing her as "devoted to accommodating" Trump.

Anthony Scaramucci, the former White House communications director, and Kimberly Guilfoyle, a Fox News anchor

AP Photos

While this relationship wasn't between two Trump staffers, Scaramucci's romantic life deserves an honorable mention — specifically, his rumored relationship with Guilfoyle.

In October, a few months after Scaramucci's 11-day stint as the White House communications director, the New York Post's Page Six reported that the pair had been seen "house-hunting together in Manhattan and of a romantic trip to Rome last month."

On July 29, two days before Scaramucci was fired from the White House, the Post reported that his wife, Deidre Ball, had filed for divorce "after getting fed up with his ruthless quest to get close to President Trump, whom she despises."